The politics of Tonga take place in a framework of a constitutional monarchy, whereby the King is the Head of State and the Commander-in-Chief of the Armed Forces. Tonga's Prime Minister is currently appointed by the King from among the members of Parliament after having won the support of a majority of its members. Executive power is vested in the Cabinet of Ministers. Legislative power is vested in the King in Parliament, and judicial power is vested in the supreme court.

The 2006 Nukuʻalofa riots, also known as the 2006 Tongan riots, started on 16 November, in the Tongan capital of Nukuʻalofa. The Legislative Assembly of Tonga was due to adjourn for the year and despite promises of action, had done little to advance democracy in the government. A mixed crowd of democracy advocates took to the streets in protest. The riots saw a number of cases of robbery, looting, vehicle theft, arson, and various property damage.